The self-diffusion coefficients of the AuNP solution in the
NPT ensemble are presented inTable 2 (see also Table 1 in the
Supporting Information for the diffusion coefficients in the
NVT ensemble), and the corresponding MSD curves are shown
in Figure 9 in the Supporting Information. The diffusion
coefficients show no significant difference for water. The water
molecules were represented using the SPC model in the
simulation setup, and the previously reported diffusion
coefficient for (pure) SPC water 4.40 × 10−5 cm2 s−1 is smaller
than that for the AuNP solutions,67 but so is also the
temperature 300 K compared to the one in our work (310 K).
The minor difference therefore arises in part from thermal